Johnson City, TN 37614 Frost Dates
Frost dates for Johnson City, TN, ZIP 37614
The last spring frost here typically falls around 04/16, about 231 days from today. The first fall frost typically arrives around 10/24, about 190 frost-free days later.
The USDA Plant Hardiness Zone Map puts Johnson City in Zone 7b (5 to 10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 7b around Johnson City has about 8 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
Why 04/16 isn't a guarantee
04/16 is the middle of 30 years of NOAA records, not a promise. Plant by 03/30 and you're betting against frost in roughly 9 years out of 10. 05/05 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Johnson City compares
About 190 days separate Johnson City's last and first frost, putting it 21,008 of 40,283 ZIP codes nationally. Within TN, it ranks 652 of 770.
Learn more
zone vs. frost date explains why Zone 7b and Johnson City's frost date answer different questions, and the frost range explains how to read the range around Johnson City's dates instead of trusting one.